1909.] THE CAYUGA LAKE BASIN, N. Y. 457 



specimens taken in the basin have been identified by Dr. E. W. Nel- 

 son, of Washington, who writes : 



There is remarkably wide variation in the skulls of this lot though the 

 specimens are externally so much alike. Ithaca is on the border line between 

 the ranges of two subspecies and while these specimens are intermediate in 

 some characters they are not very close to either subspecies (mearnsi and 

 mallurus) . 



XXXX. Order FER^. The Flesh Eaters. 

 89. Family Felid^. The Cats. 



375. Lynx canadensis Kerr. Canada lynx. 



A female now in the collection of Cornell University (C. U. 

 4834) was killed north of Wilseyville N. Y., November 16, 1906. 

 Another was seen in the same locality a few days later. During 

 the latter part of October, 1908, another specimen was shot near Park 

 Station, about ten miles west of Spencer. It is now in the possession 

 of John C. Munson of Erin, N. Y. 



90. Family Canid^. The Dogs. 



376. Vulpes fulvus (Desmarest). Red fox. 



Common and in some localities gradually increasing in numbers. 

 They are especially abundant in the vicinity of Newfield and Danby. 

 The young are born about the first of May. 



91. Family Mustelid^. The Weasels. 



377. Lutra canadensis (Schreber). Otter. 



While formerly quite common it is probably no longer to be 

 found in the basin. The last specimen noted was an adult male 

 taken in the gorge at Enfield, April 27, 1894. 



378. Putorius vison vison (Schreber). Southeastern mink. 

 Common in the swamps and alonf water courses. They are still 



a source of considerable returns to the trappers. 



379. Putorius cicognanii (Bonaparte). Small brown weasel. 

 Common in woods, fields along fences and water courses. 



380. Putorius noveboracensis Emmons. New York weasel. 

 Abundant. Found in woods, stone piles, brush piles, stump 



fences and places of the like. The change from summer to winter 



PROG. AMER. PHIL. SOC, XLVHI. I93 EE, PRINTED FEBRUARY 12, I9I0. 



